QueryPerformanceCounter function

Retrieves the current value of the high-resolution performance counter.

Syntax

BOOL WINAPI QueryPerformanceCounter(
  _Out_  LARGE_INTEGER *lpPerformanceCount
);

Parameters

lpPerformanceCount [out]

Type: LARGE_INTEGER*

A pointer to a variable that receives the current performance-counter value, in counts.

Return value

Type:

Type: BOOL

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks

On a multiprocessor computer, it should not matter which processor is called. However, you can get different results on different processors due to bugs in the basic input/output system (BIOS) or the hardware abstraction layer (HAL). To specify processor affinity for a thread, use the SetThreadAffinityMask function.

Windows Phone 8: This API is supported.

Requirements

See also

Reference

QueryPerformanceFrequency

Conceptual

Timers

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Build date: 10/26/2012